Answer
An aquifer is a geological formation or rock layer that can store and transmit groundwater in significant quantities. It is a porous and permeable zone that allows water to flow freely through it. Aquifers serve as important sources of water supply for wells and springs. An aquitard, on the other hand, is a geological formation or layer that has low permeability and restricts the flow of groundwater. It acts as a barrier, slowing down or preventing the movement of water between aquifers. Aquitards can hinder the vertical movement of water and play a role in confining aquifers.
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